6091551 has 8 divisors (see below), whose sum is σ = 9024560. Its totient is φ = 4061016.

The previous prime is 6091541. The next prime is 6091597. The reversal of 6091551 is 1551906.

6091551 is a `hidden beast` number, since 609 + 1 + 5 + 51 = 666.

It is not a de Polignac number, because 6091551 - 2⁶ = 6091487 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 225613 = 6091551 / (6 + 0 + 9 + 1 + 5 + 5 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6091511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112780 + ... + 112833.

It is an arithmetic number, because the mean of its divisors is an integer number (1128070).

Almost surely, 2^6091551 is an apocalyptic number.

6091551 is a deficient number, since it is larger than the sum of its proper divisors (2933009).

6091551 is a wasteful number, since it uses less digits than its factorization.

6091551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225622 (or 225616 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 27.

The square root of 6091551 is about 2468.1067643034. The cubic root of 6091551 is about 182.6316158231.

The spelling of 6091551 in words is "six million, ninety-one thousand, five hundred fifty-one".